A Study of Capillary Porous Structure and Sorption Properties of Nafion Proton‐Exchange Membranes Swollen in Water
Source abstract
Abstract
The standard porosimetry method (SPM) was used to study capillary porous and sorption properties of Nafion® proton‐exchange membranes. Pore volume‐size and surface‐size distributions were recorded together with water distributions as a function of capillary pressure and desorption isotherms. The measurements were performed at 20 and 80°C; only a small temperature effect was found for the porous volume structure. Using these data, the charge density at the inner pore surfaces was evaluated. The estimate suggested only a small degree of diffuseness of the proton double layer at the inner pore surface.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Fuel Cells and Related Materials · Membrane-based Ion Separation Techniques · Advanced Battery Technologies Research
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Affiliations
Institut für Werkstoffe und Verfahren der Energietechnik, Forschungszentrum Jülich GmbH, D‐52425 Jülich, Germany
The A. N. Frumkin Institute of Electrochemistry, Russian Academy of Sciences, 117071 Moscow, Russia
Institut für Festkörperphysik und Technische Physik, Technische Universität Munchen, D‐85747, Garching, Germany
References
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